siblings sharing responsibility of caregiving

I'M A SINGLE,UNEMPLOYED LADY, AGE 57, WHO IS LEFT WITH THE ENTIRE LOAD OF LOOKING AFTER MY 82 YEAR OLD PARENT,WHILE THE REST OF THE FAMILY WHO LIVES JUST 50 MILES AWAY, STAY AWAY AS MUCH AS POSSIBLE AND DON'T ATTEMPT TO CONTRIBUTE MONETARILY OR TIMEWISE TO THE SITUATION. THEY ALL HAVE MONEY AND COULD HELP OUT AT LEAST UNTIL I AM ABLE TO GET SOMEKIND OF JOB. I'M WONDERING HOW I AM GOING TO SURVIVE AND SUPPORT MYSELFWHILE CARRYING THE FULL LOAD OF CAREGIVING. DOES ANYONEHAVE AN OPINION ABOUT THE FAIRNESS OR UNFAIRNESS HERE?